Home / 121,312.32-167,217.12-80,946.24

Finding the Fourth Proportional to 121,312.32, 167,217.12 and 80,946.24

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Solution

The fourth proportional to 121,312.32, 167,217.12 and 80,946.24 is: 111,576.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,312.32 : 167,217.12 = 80,946.24 : x
  2. Step 2: Convert to fraction form
    121,312.32/167,217.12 = 80,946.24/x
  3. Step 3: Cross multiply
    121,312.32x = 167,217.12 × 80,946.24
  4. Step 4: Simplify right side
    121,312.32x = 13,535,597,127.63
  5. Step 5: Solve for x
    x = 13,535,597,127.63/121,312.32
  6. Step 6: Final answer
    x = 111,576.44

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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.