Home / 156,430.31-215,665.00-124,271.62

Finding the Fourth Proportional to 156,430.31, 215,665.00 and 124,271.62

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Solution

The fourth proportional to 156,430.31, 215,665.00 and 124,271.62 is: 171,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,430.31 : 215,665.00 = 124,271.62 : x
  2. Step 2: Convert to fraction form
    156,430.31/215,665.00 = 124,271.62/x
  3. Step 3: Cross multiply
    156,430.31x = 215,665.00 × 124,271.62
  4. Step 4: Simplify right side
    156,430.31x = 26,801,038,077.46
  5. Step 5: Solve for x
    x = 26,801,038,077.46/156,430.31
  6. Step 6: Final answer
    x = 171,328.94

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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.