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Finding the Fourth Proportional to 130,104, 179,543.52 and 70,488

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Solution

The fourth proportional to 130,104, 179,543.52 and 70,488 is: 97,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,104 : 179,543.52 = 70,488 : x
  2. Step 2: Convert to fraction form
    130,104/179,543.52 = 70,488/x
  3. Step 3: Cross multiply
    130,104x = 179,543.52 × 70,488
  4. Step 4: Simplify right side
    130,104x = 12,655,663,637.76
  5. Step 5: Solve for x
    x = 12,655,663,637.76/130,104
  6. Step 6: Final answer
    x = 97,273.44

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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.