Home / 147,036.40-220,117.20-97,172.80

Finding the Fourth Proportional to 147,036.40, 220,117.20 and 97,172.80

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Solution

The fourth proportional to 147,036.40, 220,117.20 and 97,172.80 is: 145,470.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,036.40 : 220,117.20 = 97,172.80 : x
  2. Step 2: Convert to fraction form
    147,036.40/220,117.20 = 97,172.80/x
  3. Step 3: Cross multiply
    147,036.40x = 220,117.20 × 97,172.80
  4. Step 4: Simplify right side
    147,036.40x = 21,389,404,652.16
  5. Step 5: Solve for x
    x = 21,389,404,652.16/147,036.40
  6. Step 6: Final answer
    x = 145,470.13

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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.