Home / 112,806.72-169,210.08-53,610.10

Finding the Fourth Proportional to 112,806.72, 169,210.08 and 53,610.10

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Solution

The fourth proportional to 112,806.72, 169,210.08 and 53,610.10 is: 80,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,806.72 : 169,210.08 = 53,610.10 : x
  2. Step 2: Convert to fraction form
    112,806.72/169,210.08 = 53,610.10/x
  3. Step 3: Cross multiply
    112,806.72x = 169,210.08 × 53,610.10
  4. Step 4: Simplify right side
    112,806.72x = 9,071,368,886.78
  5. Step 5: Solve for x
    x = 9,071,368,886.78/112,806.72
  6. Step 6: Final answer
    x = 80,415.15

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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.