Home / 145,307.46-217,829.16-129,561.06

Finding the Fourth Proportional to 145,307.46, 217,829.16 and 129,561.06

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Solution

The fourth proportional to 145,307.46, 217,829.16 and 129,561.06 is: 194,223.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,307.46 : 217,829.16 = 129,561.06 : x
  2. Step 2: Convert to fraction form
    145,307.46/217,829.16 = 129,561.06/x
  3. Step 3: Cross multiply
    145,307.46x = 217,829.16 × 129,561.06
  4. Step 4: Simplify right side
    145,307.46x = 28,222,176,868.51
  5. Step 5: Solve for x
    x = 28,222,176,868.51/145,307.46
  6. Step 6: Final answer
    x = 194,223.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.