Home / 98,921.04-136,510.56-54,209.04

Finding the Fourth Proportional to 98,921.04, 136,510.56 and 54,209.04

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Solution

The fourth proportional to 98,921.04, 136,510.56 and 54,209.04 is: 74,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.04 : 136,510.56 = 54,209.04 : x
  2. Step 2: Convert to fraction form
    98,921.04/136,510.56 = 54,209.04/x
  3. Step 3: Cross multiply
    98,921.04x = 136,510.56 × 54,209.04
  4. Step 4: Simplify right side
    98,921.04x = 7,400,106,407.46
  5. Step 5: Solve for x
    x = 7,400,106,407.46/98,921.04
  6. Step 6: Final answer
    x = 74,808.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.