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Finding the Fourth Proportional to 125,413.12, 173,061.12 and 71,700.40

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Solution

The fourth proportional to 125,413.12, 173,061.12 and 71,700.40 is: 98,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,413.12 : 173,061.12 = 71,700.40 : x
  2. Step 2: Convert to fraction form
    125,413.12/173,061.12 = 71,700.40/x
  3. Step 3: Cross multiply
    125,413.12x = 173,061.12 × 71,700.40
  4. Step 4: Simplify right side
    125,413.12x = 12,408,551,528.45
  5. Step 5: Solve for x
    x = 12,408,551,528.45/125,413.12
  6. Step 6: Final answer
    x = 98,941.41

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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.