Home / 118,342.71-177,602.23-86,834.19

Finding the Fourth Proportional to 118,342.71, 177,602.23 and 86,834.19

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Solution

The fourth proportional to 118,342.71, 177,602.23 and 86,834.19 is: 130,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,342.71 : 177,602.23 = 86,834.19 : x
  2. Step 2: Convert to fraction form
    118,342.71/177,602.23 = 86,834.19/x
  3. Step 3: Cross multiply
    118,342.71x = 177,602.23 × 86,834.19
  4. Step 4: Simplify right side
    118,342.71x = 15,421,945,567.16
  5. Step 5: Solve for x
    x = 15,421,945,567.16/118,342.71
  6. Step 6: Final answer
    x = 130,315.97

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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.