Home / 125,088.05-172,618.34-69,897.86

Finding the Fourth Proportional to 125,088.05, 172,618.34 and 69,897.86

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Solution

The fourth proportional to 125,088.05, 172,618.34 and 69,897.86 is: 96,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,088.05 : 172,618.34 = 69,897.86 : x
  2. Step 2: Convert to fraction form
    125,088.05/172,618.34 = 69,897.86/x
  3. Step 3: Cross multiply
    125,088.05x = 172,618.34 × 69,897.86
  4. Step 4: Simplify right side
    125,088.05x = 12,065,651,350.17
  5. Step 5: Solve for x
    x = 12,065,651,350.17/125,088.05
  6. Step 6: Final answer
    x = 96,457.27

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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.