Home / 112,753,345.40-169,130,018.10-85,879,489.40

Finding the Fourth Proportional to 112,753,345.40, 169,130,018.10 and 85,879,489.40

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Solution

The fourth proportional to 112,753,345.40, 169,130,018.10 and 85,879,489.40 is: 128,819,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,753,345.40 : 169,130,018.10 = 85,879,489.40 : x
  2. Step 2: Convert to fraction form
    112,753,345.40/169,130,018.10 = 85,879,489.40/x
  3. Step 3: Cross multiply
    112,753,345.40x = 169,130,018.10 × 85,879,489.40
  4. Step 4: Simplify right side
    112,753,345.40x = 14,524,799,596,640,758
  5. Step 5: Solve for x
    x = 14,524,799,596,640,758/112,753,345.40
  6. Step 6: Final answer
    x = 128,819,234.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.