Home / 286,510.10-429,613.95-96,905.30

Finding the Fourth Proportional to 286,510.10, 429,613.95 and 96,905.30

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Solution

The fourth proportional to 286,510.10, 429,613.95 and 96,905.30 is: 145,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,510.10 : 429,613.95 = 96,905.30 : x
  2. Step 2: Convert to fraction form
    286,510.10/429,613.95 = 96,905.30/x
  3. Step 3: Cross multiply
    286,510.10x = 429,613.95 × 96,905.30
  4. Step 4: Simplify right side
    286,510.10x = 41,631,868,708.94
  5. Step 5: Solve for x
    x = 41,631,868,708.94/286,510.10
  6. Step 6: Final answer
    x = 145,306.81

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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.