Home / 155,863.02-215,091.01-87,880.13

Finding the Fourth Proportional to 155,863.02, 215,091.01 and 87,880.13

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Solution

The fourth proportional to 155,863.02, 215,091.01 and 87,880.13 is: 121,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,863.02 : 215,091.01 = 87,880.13 : x
  2. Step 2: Convert to fraction form
    155,863.02/215,091.01 = 87,880.13/x
  3. Step 3: Cross multiply
    155,863.02x = 215,091.01 × 87,880.13
  4. Step 4: Simplify right side
    155,863.02x = 18,902,225,920.63
  5. Step 5: Solve for x
    x = 18,902,225,920.63/155,863.02
  6. Step 6: Final answer
    x = 121,274.60

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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.