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Finding the Fourth Proportional to 130,051, 179,470.38 and 70,435

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Solution

The fourth proportional to 130,051, 179,470.38 and 70,435 is: 97,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,051 : 179,470.38 = 70,435 : x
  2. Step 2: Convert to fraction form
    130,051/179,470.38 = 70,435/x
  3. Step 3: Cross multiply
    130,051x = 179,470.38 × 70,435
  4. Step 4: Simplify right side
    130,051x = 12,640,996,215.30
  5. Step 5: Solve for x
    x = 12,640,996,215.30/130,051
  6. Step 6: Final answer
    x = 97,200.30

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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.