Home / 145,089.28-216,455.75-137,242.00

Finding the Fourth Proportional to 145,089.28, 216,455.75 and 137,242.00

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Solution

The fourth proportional to 145,089.28, 216,455.75 and 137,242.00 is: 204,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,089.28 : 216,455.75 = 137,242.00 : x
  2. Step 2: Convert to fraction form
    145,089.28/216,455.75 = 137,242.00/x
  3. Step 3: Cross multiply
    145,089.28x = 216,455.75 × 137,242.00
  4. Step 4: Simplify right side
    145,089.28x = 29,706,820,655.17
  5. Step 5: Solve for x
    x = 29,706,820,655.17/145,089.28
  6. Step 6: Final answer
    x = 204,748.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.