Home / 126,641.13-174,688.61-83,621.01

Finding the Fourth Proportional to 126,641.13, 174,688.61 and 83,621.01

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Solution

The fourth proportional to 126,641.13, 174,688.61 and 83,621.01 is: 115,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,641.13 : 174,688.61 = 83,621.01 : x
  2. Step 2: Convert to fraction form
    126,641.13/174,688.61 = 83,621.01/x
  3. Step 3: Cross multiply
    126,641.13x = 174,688.61 × 83,621.01
  4. Step 4: Simplify right side
    126,641.13x = 14,607,637,585.59
  5. Step 5: Solve for x
    x = 14,607,637,585.59/126,641.13
  6. Step 6: Final answer
    x = 115,346.71

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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.