Home / 115,070.65-172,622.36-55,865.81

Finding the Fourth Proportional to 115,070.65, 172,622.36 and 55,865.81

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Solution

The fourth proportional to 115,070.65, 172,622.36 and 55,865.81 is: 83,806.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,070.65 : 172,622.36 = 55,865.81 : x
  2. Step 2: Convert to fraction form
    115,070.65/172,622.36 = 55,865.81/x
  3. Step 3: Cross multiply
    115,070.65x = 172,622.36 × 55,865.81
  4. Step 4: Simplify right side
    115,070.65x = 9,643,688,536.73
  5. Step 5: Solve for x
    x = 9,643,688,536.73/115,070.65
  6. Step 6: Final answer
    x = 83,806.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.