Home / 130,320.42-179,823.06-72,956.76

Finding the Fourth Proportional to 130,320.42, 179,823.06 and 72,956.76

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Solution

The fourth proportional to 130,320.42, 179,823.06 and 72,956.76 is: 100,669.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,320.42 : 179,823.06 = 72,956.76 : x
  2. Step 2: Convert to fraction form
    130,320.42/179,823.06 = 72,956.76/x
  3. Step 3: Cross multiply
    130,320.42x = 179,823.06 × 72,956.76
  4. Step 4: Simplify right side
    130,320.42x = 13,119,307,830.89
  5. Step 5: Solve for x
    x = 13,119,307,830.89/130,320.42
  6. Step 6: Final answer
    x = 100,669.63

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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.