Home / 155,280.90-232,921.35-145,439.40

Finding the Fourth Proportional to 155,280.90, 232,921.35 and 145,439.40

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Solution

The fourth proportional to 155,280.90, 232,921.35 and 145,439.40 is: 218,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,280.90 : 232,921.35 = 145,439.40 : x
  2. Step 2: Convert to fraction form
    155,280.90/232,921.35 = 145,439.40/x
  3. Step 3: Cross multiply
    155,280.90x = 232,921.35 × 145,439.40
  4. Step 4: Simplify right side
    155,280.90x = 33,875,941,391.19
  5. Step 5: Solve for x
    x = 33,875,941,391.19/155,280.90
  6. Step 6: Final answer
    x = 218,159.10

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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.