Home / 112,630.19-155,367.26-72,298.67

Finding the Fourth Proportional to 112,630.19, 155,367.26 and 72,298.67

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Solution

The fourth proportional to 112,630.19, 155,367.26 and 72,298.67 is: 99,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,630.19 : 155,367.26 = 72,298.67 : x
  2. Step 2: Convert to fraction form
    112,630.19/155,367.26 = 72,298.67/x
  3. Step 3: Cross multiply
    112,630.19x = 155,367.26 × 72,298.67
  4. Step 4: Simplify right side
    112,630.19x = 11,232,845,121.21
  5. Step 5: Solve for x
    x = 11,232,845,121.21/112,630.19
  6. Step 6: Final answer
    x = 99,732.10

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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.