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Finding the Fourth Proportional to 130,354.14, 179,888.70 and 70,738.14

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Solution

The fourth proportional to 130,354.14, 179,888.70 and 70,738.14 is: 97,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,354.14 : 179,888.70 = 70,738.14 : x
  2. Step 2: Convert to fraction form
    130,354.14/179,888.70 = 70,738.14/x
  3. Step 3: Cross multiply
    130,354.14x = 179,888.70 × 70,738.14
  4. Step 4: Simplify right side
    130,354.14x = 12,724,992,045.02
  5. Step 5: Solve for x
    x = 12,724,992,045.02/130,354.14
  6. Step 6: Final answer
    x = 97,618.63

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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.