Home / 115,117.84-158,868.84-64,821.52

Finding the Fourth Proportional to 115,117.84, 158,868.84 and 64,821.52

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Solution

The fourth proportional to 115,117.84, 158,868.84 and 64,821.52 is: 89,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,117.84 : 158,868.84 = 64,821.52 : x
  2. Step 2: Convert to fraction form
    115,117.84/158,868.84 = 64,821.52/x
  3. Step 3: Cross multiply
    115,117.84x = 158,868.84 × 64,821.52
  4. Step 4: Simplify right side
    115,117.84x = 10,298,119,689.44
  5. Step 5: Solve for x
    x = 10,298,119,689.44/115,117.84
  6. Step 6: Final answer
    x = 89,457.20

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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.