Home / 98,728.20-148,019.40-42,522.30

Finding the Fourth Proportional to 98,728.20, 148,019.40 and 42,522.30

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Solution

The fourth proportional to 98,728.20, 148,019.40 and 42,522.30 is: 63,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728.20 : 148,019.40 = 42,522.30 : x
  2. Step 2: Convert to fraction form
    98,728.20/148,019.40 = 42,522.30/x
  3. Step 3: Cross multiply
    98,728.20x = 148,019.40 × 42,522.30
  4. Step 4: Simplify right side
    98,728.20x = 6,294,125,332.62
  5. Step 5: Solve for x
    x = 6,294,125,332.62/98,728.20
  6. Step 6: Final answer
    x = 63,752.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.