Home / 155,153.30-232,725.28-42,840.38

Finding the Fourth Proportional to 155,153.30, 232,725.28 and 42,840.38

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Solution

The fourth proportional to 155,153.30, 232,725.28 and 42,840.38 is: 64,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,153.30 : 232,725.28 = 42,840.38 : x
  2. Step 2: Convert to fraction form
    155,153.30/232,725.28 = 42,840.38/x
  3. Step 3: Cross multiply
    155,153.30x = 232,725.28 × 42,840.38
  4. Step 4: Simplify right side
    155,153.30x = 9,970,039,430.81
  5. Step 5: Solve for x
    x = 9,970,039,430.81/155,153.30
  6. Step 6: Final answer
    x = 64,259.28

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1.5x scale

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.