Home / 155,760.08-214,948.80-84,140.12

Finding the Fourth Proportional to 155,760.08, 214,948.80 and 84,140.12

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Solution

The fourth proportional to 155,760.08, 214,948.80 and 84,140.12 is: 116,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,760.08 : 214,948.80 = 84,140.12 : x
  2. Step 2: Convert to fraction form
    155,760.08/214,948.80 = 84,140.12/x
  3. Step 3: Cross multiply
    155,760.08x = 214,948.80 × 84,140.12
  4. Step 4: Simplify right side
    155,760.08x = 18,085,817,825.86
  5. Step 5: Solve for x
    x = 18,085,817,825.86/155,760.08
  6. Step 6: Final answer
    x = 116,113.31

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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.