Home / 98,420.04-147,630.78-42,212.73

Finding the Fourth Proportional to 98,420.04, 147,630.78 and 42,212.73

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Solution

The fourth proportional to 98,420.04, 147,630.78 and 42,212.73 is: 63,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,420.04 : 147,630.78 = 42,212.73 : x
  2. Step 2: Convert to fraction form
    98,420.04/147,630.78 = 42,212.73/x
  3. Step 3: Cross multiply
    98,420.04x = 147,630.78 × 42,212.73
  4. Step 4: Simplify right side
    98,420.04x = 6,231,898,255.83
  5. Step 5: Solve for x
    x = 6,231,898,255.83/98,420.04
  6. Step 6: Final answer
    x = 63,319.40

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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.