Home / 136,547.28-188,420.04-76,113.36

Finding the Fourth Proportional to 136,547.28, 188,420.04 and 76,113.36

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Solution

The fourth proportional to 136,547.28, 188,420.04 and 76,113.36 is: 105,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,547.28 : 188,420.04 = 76,113.36 : x
  2. Step 2: Convert to fraction form
    136,547.28/188,420.04 = 76,113.36/x
  3. Step 3: Cross multiply
    136,547.28x = 188,420.04 × 76,113.36
  4. Step 4: Simplify right side
    136,547.28x = 14,341,282,335.73
  5. Step 5: Solve for x
    x = 14,341,282,335.73/136,547.28
  6. Step 6: Final answer
    x = 105,027.96

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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.