Home / 130,307.68-179,822.80-72,948.96

Finding the Fourth Proportional to 130,307.68, 179,822.80 and 72,948.96

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Solution

The fourth proportional to 130,307.68, 179,822.80 and 72,948.96 is: 100,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,307.68 : 179,822.80 = 72,948.96 : x
  2. Step 2: Convert to fraction form
    130,307.68/179,822.80 = 72,948.96/x
  3. Step 3: Cross multiply
    130,307.68x = 179,822.80 × 72,948.96
  4. Step 4: Simplify right side
    130,307.68x = 13,117,886,244.29
  5. Step 5: Solve for x
    x = 13,117,886,244.29/130,307.68
  6. Step 6: Final answer
    x = 100,668.56

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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.