Home / 151,070.10-208,460.39-87,396

Finding the Fourth Proportional to 151,070.10, 208,460.39 and 87,396

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Solution

The fourth proportional to 151,070.10, 208,460.39 and 87,396 is: 120,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,070.10 : 208,460.39 = 87,396 : x
  2. Step 2: Convert to fraction form
    151,070.10/208,460.39 = 87,396/x
  3. Step 3: Cross multiply
    151,070.10x = 208,460.39 × 87,396
  4. Step 4: Simplify right side
    151,070.10x = 18,218,603,807.46
  5. Step 5: Solve for x
    x = 18,218,603,807.46/151,070.10
  6. Step 6: Final answer
    x = 120,597.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.