Home / 155,276.16-214,288.70-87,314.53

Finding the Fourth Proportional to 155,276.16, 214,288.70 and 87,314.53

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Solution

The fourth proportional to 155,276.16, 214,288.70 and 87,314.53 is: 120,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,276.16 : 214,288.70 = 87,314.53 : x
  2. Step 2: Convert to fraction form
    155,276.16/214,288.70 = 87,314.53/x
  3. Step 3: Cross multiply
    155,276.16x = 214,288.70 × 87,314.53
  4. Step 4: Simplify right side
    155,276.16x = 18,710,516,807.38
  5. Step 5: Solve for x
    x = 18,710,516,807.38/155,276.16
  6. Step 6: Final answer
    x = 120,498.32

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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.