Home / 99,262.08-136,998-72,493.20

Finding the Fourth Proportional to 99,262.08, 136,998 and 72,493.20

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Solution

The fourth proportional to 99,262.08, 136,998 and 72,493.20 is: 100,052.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,262.08 : 136,998 = 72,493.20 : x
  2. Step 2: Convert to fraction form
    99,262.08/136,998 = 72,493.20/x
  3. Step 3: Cross multiply
    99,262.08x = 136,998 × 72,493.20
  4. Step 4: Simplify right side
    99,262.08x = 9,931,423,413.60
  5. Step 5: Solve for x
    x = 9,931,423,413.60/99,262.08
  6. Step 6: Final answer
    x = 100,052.54

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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.