Home / 112,701.62-155,339.27-89,967.74

Finding the Fourth Proportional to 112,701.62, 155,339.27 and 89,967.74

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Solution

The fourth proportional to 112,701.62, 155,339.27 and 89,967.74 is: 124,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,701.62 : 155,339.27 = 89,967.74 : x
  2. Step 2: Convert to fraction form
    112,701.62/155,339.27 = 89,967.74/x
  3. Step 3: Cross multiply
    112,701.62x = 155,339.27 × 89,967.74
  4. Step 4: Simplify right side
    112,701.62x = 13,975,523,055.15
  5. Step 5: Solve for x
    x = 13,975,523,055.15/112,701.62
  6. Step 6: Final answer
    x = 124,004.63

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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.