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Finding the Fourth Proportional to 125,894.58, 173,728.98 and 72,176.40

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Solution

The fourth proportional to 125,894.58, 173,728.98 and 72,176.40 is: 99,600.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,894.58 : 173,728.98 = 72,176.40 : x
  2. Step 2: Convert to fraction form
    125,894.58/173,728.98 = 72,176.40/x
  3. Step 3: Cross multiply
    125,894.58x = 173,728.98 × 72,176.40
  4. Step 4: Simplify right side
    125,894.58x = 12,539,132,352.07
  5. Step 5: Solve for x
    x = 12,539,132,352.07/125,894.58
  6. Step 6: Final answer
    x = 99,600.26

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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.