Home / 98,639.20-148,019.55-42,506.20

Finding the Fourth Proportional to 98,639.20, 148,019.55 and 42,506.20

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Solution

The fourth proportional to 98,639.20, 148,019.55 and 42,506.20 is: 63,785.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,639.20 : 148,019.55 = 42,506.20 : x
  2. Step 2: Convert to fraction form
    98,639.20/148,019.55 = 42,506.20/x
  3. Step 3: Cross multiply
    98,639.20x = 148,019.55 × 42,506.20
  4. Step 4: Simplify right side
    98,639.20x = 6,291,748,596.21
  5. Step 5: Solve for x
    x = 6,291,748,596.21/98,639.20
  6. Step 6: Final answer
    x = 63,785.48

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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.