Home / 145,301.10-200,531.73-87,972.00

Finding the Fourth Proportional to 145,301.10, 200,531.73 and 87,972.00

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Solution

The fourth proportional to 145,301.10, 200,531.73 and 87,972.00 is: 121,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,301.10 : 200,531.73 = 87,972.00 : x
  2. Step 2: Convert to fraction form
    145,301.10/200,531.73 = 87,972.00/x
  3. Step 3: Cross multiply
    145,301.10x = 200,531.73 × 87,972.00
  4. Step 4: Simplify right side
    145,301.10x = 17,641,176,929.46
  5. Step 5: Solve for x
    x = 17,641,176,929.46/145,301.10
  6. Step 6: Final answer
    x = 121,411.18

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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.