Home / 136,681.90-205,080.45-74,397.10

Finding the Fourth Proportional to 136,681.90, 205,080.45 and 74,397.10

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Solution

The fourth proportional to 136,681.90, 205,080.45 and 74,397.10 is: 111,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,681.90 : 205,080.45 = 74,397.10 : x
  2. Step 2: Convert to fraction form
    136,681.90/205,080.45 = 74,397.10/x
  3. Step 3: Cross multiply
    136,681.90x = 205,080.45 × 74,397.10
  4. Step 4: Simplify right side
    136,681.90x = 15,257,390,746.70
  5. Step 5: Solve for x
    x = 15,257,390,746.70/136,681.90
  6. Step 6: Final answer
    x = 111,627.00

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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.