Home / 125,088.75-172,622.55-67,728.57

Finding the Fourth Proportional to 125,088.75, 172,622.55 and 67,728.57

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Solution

The fourth proportional to 125,088.75, 172,622.55 and 67,728.57 is: 93,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,088.75 : 172,622.55 = 67,728.57 : x
  2. Step 2: Convert to fraction form
    125,088.75/172,622.55 = 67,728.57/x
  3. Step 3: Cross multiply
    125,088.75x = 172,622.55 × 67,728.57
  4. Step 4: Simplify right side
    125,088.75x = 11,691,478,461.25
  5. Step 5: Solve for x
    x = 11,691,478,461.25/125,088.75
  6. Step 6: Final answer
    x = 93,465.47

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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.