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Finding the Fourth Proportional to 130,359, 179,895.44 and 70,743

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Solution

The fourth proportional to 130,359, 179,895.44 and 70,743 is: 97,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,359 : 179,895.44 = 70,743 : x
  2. Step 2: Convert to fraction form
    130,359/179,895.44 = 70,743/x
  3. Step 3: Cross multiply
    130,359x = 179,895.44 × 70,743
  4. Step 4: Simplify right side
    130,359x = 12,726,343,111.92
  5. Step 5: Solve for x
    x = 12,726,343,111.92/130,359
  6. Step 6: Final answer
    x = 97,625.35

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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.