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Finding the Fourth Proportional to 129,954.95, 179,338.35 and 70,338.95

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Solution

The fourth proportional to 129,954.95, 179,338.35 and 70,338.95 is: 97,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,954.95 : 179,338.35 = 70,338.95 : x
  2. Step 2: Convert to fraction form
    129,954.95/179,338.35 = 70,338.95/x
  3. Step 3: Cross multiply
    129,954.95x = 179,338.35 × 70,338.95
  4. Step 4: Simplify right side
    129,954.95x = 12,614,470,337.04
  5. Step 5: Solve for x
    x = 12,614,470,337.04/129,954.95
  6. Step 6: Final answer
    x = 97,068.03

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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.