Home / 125,019.18-172,531.23-71,312.94

Finding the Fourth Proportional to 125,019.18, 172,531.23 and 71,312.94

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Solution

The fourth proportional to 125,019.18, 172,531.23 and 71,312.94 is: 98,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,019.18 : 172,531.23 = 71,312.94 : x
  2. Step 2: Convert to fraction form
    125,019.18/172,531.23 = 71,312.94/x
  3. Step 3: Cross multiply
    125,019.18x = 172,531.23 × 71,312.94
  4. Step 4: Simplify right side
    125,019.18x = 12,303,709,253.12
  5. Step 5: Solve for x
    x = 12,303,709,253.12/125,019.18
  6. Step 6: Final answer
    x = 98,414.57

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1.5x scale

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.