Home / 136,341.28-188,148.72-79,762.24

Finding the Fourth Proportional to 136,341.28, 188,148.72 and 79,762.24

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Solution

The fourth proportional to 136,341.28, 188,148.72 and 79,762.24 is: 110,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,341.28 : 188,148.72 = 79,762.24 : x
  2. Step 2: Convert to fraction form
    136,341.28/188,148.72 = 79,762.24/x
  3. Step 3: Cross multiply
    136,341.28x = 188,148.72 × 79,762.24
  4. Step 4: Simplify right side
    136,341.28x = 15,007,163,360.33
  5. Step 5: Solve for x
    x = 15,007,163,360.33/136,341.28
  6. Step 6: Final answer
    x = 110,070.58

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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.