Home / 108,711.32-149,882.74-70,403.18

Finding the Fourth Proportional to 108,711.32, 149,882.74 and 70,403.18

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Solution

The fourth proportional to 108,711.32, 149,882.74 and 70,403.18 is: 97,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,711.32 : 149,882.74 = 70,403.18 : x
  2. Step 2: Convert to fraction form
    108,711.32/149,882.74 = 70,403.18/x
  3. Step 3: Cross multiply
    108,711.32x = 149,882.74 × 70,403.18
  4. Step 4: Simplify right side
    108,711.32x = 10,552,220,597.69
  5. Step 5: Solve for x
    x = 10,552,220,597.69/108,711.32
  6. Step 6: Final answer
    x = 97,066.44

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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.