Home / 155,485.47-214,567.56-87,497.13

Finding the Fourth Proportional to 155,485.47, 214,567.56 and 87,497.13

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Solution

The fourth proportional to 155,485.47, 214,567.56 and 87,497.13 is: 120,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,485.47 : 214,567.56 = 87,497.13 : x
  2. Step 2: Convert to fraction form
    155,485.47/214,567.56 = 87,497.13/x
  3. Step 3: Cross multiply
    155,485.47x = 214,567.56 × 87,497.13
  4. Step 4: Simplify right side
    155,485.47x = 18,774,045,691.10
  5. Step 5: Solve for x
    x = 18,774,045,691.10/155,485.47
  6. Step 6: Final answer
    x = 120,744.70

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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.