Home / 98,637.12-147,962.88-28,516.80

Finding the Fourth Proportional to 98,637.12, 147,962.88 and 28,516.80

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Solution

The fourth proportional to 98,637.12, 147,962.88 and 28,516.80 is: 42,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,637.12 : 147,962.88 = 28,516.80 : x
  2. Step 2: Convert to fraction form
    98,637.12/147,962.88 = 28,516.80/x
  3. Step 3: Cross multiply
    98,637.12x = 147,962.88 × 28,516.80
  4. Step 4: Simplify right side
    98,637.12x = 4,219,427,856.38
  5. Step 5: Solve for x
    x = 4,219,427,856.38/98,637.12
  6. Step 6: Final answer
    x = 42,777.28

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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.