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Finding the Fourth Proportional to 88,023.31, 121,499 and 70,240.57

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Solution

The fourth proportional to 88,023.31, 121,499 and 70,240.57 is: 96,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,023.31 : 121,499 = 70,240.57 : x
  2. Step 2: Convert to fraction form
    88,023.31/121,499 = 70,240.57/x
  3. Step 3: Cross multiply
    88,023.31x = 121,499 × 70,240.57
  4. Step 4: Simplify right side
    88,023.31x = 8,534,159,014.43
  5. Step 5: Solve for x
    x = 8,534,159,014.43/88,023.31
  6. Step 6: Final answer
    x = 96,953.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.