Home / 155,434.60-233,036.70-66,615.40

Finding the Fourth Proportional to 155,434.60, 233,036.70 and 66,615.40

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Solution

The fourth proportional to 155,434.60, 233,036.70 and 66,615.40 is: 99,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,434.60 : 233,036.70 = 66,615.40 : x
  2. Step 2: Convert to fraction form
    155,434.60/233,036.70 = 66,615.40/x
  3. Step 3: Cross multiply
    155,434.60x = 233,036.70 × 66,615.40
  4. Step 4: Simplify right side
    155,434.60x = 15,523,832,985.18
  5. Step 5: Solve for x
    x = 15,523,832,985.18/155,434.60
  6. Step 6: Final answer
    x = 99,873.73

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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.