Home / 155,973.40-215,243.29-84,353.40

Finding the Fourth Proportional to 155,973.40, 215,243.29 and 84,353.40

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Solution

The fourth proportional to 155,973.40, 215,243.29 and 84,353.40 is: 116,407.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,973.40 : 215,243.29 = 84,353.40 : x
  2. Step 2: Convert to fraction form
    155,973.40/215,243.29 = 84,353.40/x
  3. Step 3: Cross multiply
    155,973.40x = 215,243.29 × 84,353.40
  4. Step 4: Simplify right side
    155,973.40x = 18,156,503,444.13
  5. Step 5: Solve for x
    x = 18,156,503,444.13/155,973.40
  6. Step 6: Final answer
    x = 116,407.69

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1.5x scale

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.