Home / 155,973.40-215,242.59-84,353.47

Finding the Fourth Proportional to 155,973.40, 215,242.59 and 84,353.47

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Solution

The fourth proportional to 155,973.40, 215,242.59 and 84,353.47 is: 116,407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,973.40 : 215,242.59 = 84,353.47 : x
  2. Step 2: Convert to fraction form
    155,973.40/215,242.59 = 84,353.47/x
  3. Step 3: Cross multiply
    155,973.40x = 215,242.59 × 84,353.47
  4. Step 4: Simplify right side
    155,973.40x = 18,156,459,358.29
  5. Step 5: Solve for x
    x = 18,156,459,358.29/155,973.40
  6. Step 6: Final answer
    x = 116,407.41

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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.