Home / 130,337.17-179,865.21-70,721.17

Finding the Fourth Proportional to 130,337.17, 179,865.21 and 70,721.17

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Solution

The fourth proportional to 130,337.17, 179,865.21 and 70,721.17 is: 97,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,337.17 : 179,865.21 = 70,721.17 : x
  2. Step 2: Convert to fraction form
    130,337.17/179,865.21 = 70,721.17/x
  3. Step 3: Cross multiply
    130,337.17x = 179,865.21 × 70,721.17
  4. Step 4: Simplify right side
    130,337.17x = 12,720,278,093.50
  5. Step 5: Solve for x
    x = 12,720,278,093.50/130,337.17
  6. Step 6: Final answer
    x = 97,595.17

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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.