Home / 155,613.60-233,420.40-76,881.60

Finding the Fourth Proportional to 155,613.60, 233,420.40 and 76,881.60

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Solution

The fourth proportional to 155,613.60, 233,420.40 and 76,881.60 is: 115,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,613.60 : 233,420.40 = 76,881.60 : x
  2. Step 2: Convert to fraction form
    155,613.60/233,420.40 = 76,881.60/x
  3. Step 3: Cross multiply
    155,613.60x = 233,420.40 × 76,881.60
  4. Step 4: Simplify right side
    155,613.60x = 17,945,733,824.64
  5. Step 5: Solve for x
    x = 17,945,733,824.64/155,613.60
  6. Step 6: Final answer
    x = 115,322.40

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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.