Home / 155,520.04-214,543.74-91,815.16

Finding the Fourth Proportional to 155,520.04, 214,543.74 and 91,815.16

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Solution

The fourth proportional to 155,520.04, 214,543.74 and 91,815.16 is: 126,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,520.04 : 214,543.74 = 91,815.16 : x
  2. Step 2: Convert to fraction form
    155,520.04/214,543.74 = 91,815.16/x
  3. Step 3: Cross multiply
    155,520.04x = 214,543.74 × 91,815.16
  4. Step 4: Simplify right side
    155,520.04x = 19,698,367,815.10
  5. Step 5: Solve for x
    x = 19,698,367,815.10/155,520.04
  6. Step 6: Final answer
    x = 126,661.28

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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.