Home / 98,142.02-147,213.09-31,582.13

Finding the Fourth Proportional to 98,142.02, 147,213.09 and 31,582.13

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Solution

The fourth proportional to 98,142.02, 147,213.09 and 31,582.13 is: 47,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,142.02 : 147,213.09 = 31,582.13 : x
  2. Step 2: Convert to fraction form
    98,142.02/147,213.09 = 31,582.13/x
  3. Step 3: Cross multiply
    98,142.02x = 147,213.09 × 31,582.13
  4. Step 4: Simplify right side
    98,142.02x = 4,649,302,946.08
  5. Step 5: Solve for x
    x = 4,649,302,946.08/98,142.02
  6. Step 6: Final answer
    x = 47,373.22

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Similar ratio
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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.