Home / 136,811.04-188,747.28-83,075.76

Finding the Fourth Proportional to 136,811.04, 188,747.28 and 83,075.76

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Solution

The fourth proportional to 136,811.04, 188,747.28 and 83,075.76 is: 114,613.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,811.04 : 188,747.28 = 83,075.76 : x
  2. Step 2: Convert to fraction form
    136,811.04/188,747.28 = 83,075.76/x
  3. Step 3: Cross multiply
    136,811.04x = 188,747.28 × 83,075.76
  4. Step 4: Simplify right side
    136,811.04x = 15,680,323,733.93
  5. Step 5: Solve for x
    x = 15,680,323,733.93/136,811.04
  6. Step 6: Final answer
    x = 114,613.00

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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.