Home / 102,502.40-153,775.20-43,307.60

Finding the Fourth Proportional to 102,502.40, 153,775.20 and 43,307.60

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Solution

The fourth proportional to 102,502.40, 153,775.20 and 43,307.60 is: 64,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,502.40 : 153,775.20 = 43,307.60 : x
  2. Step 2: Convert to fraction form
    102,502.40/153,775.20 = 43,307.60/x
  3. Step 3: Cross multiply
    102,502.40x = 153,775.20 × 43,307.60
  4. Step 4: Simplify right side
    102,502.40x = 6,659,634,851.52
  5. Step 5: Solve for x
    x = 6,659,634,851.52/102,502.40
  6. Step 6: Final answer
    x = 64,970.53

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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.