Home / 103,476.16-142,779.70-61,043.08

Finding the Fourth Proportional to 103,476.16, 142,779.70 and 61,043.08

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Solution

The fourth proportional to 103,476.16, 142,779.70 and 61,043.08 is: 84,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,476.16 : 142,779.70 = 61,043.08 : x
  2. Step 2: Convert to fraction form
    103,476.16/142,779.70 = 61,043.08/x
  3. Step 3: Cross multiply
    103,476.16x = 142,779.70 × 61,043.08
  4. Step 4: Simplify right side
    103,476.16x = 8,715,712,649.48
  5. Step 5: Solve for x
    x = 8,715,712,649.48/103,476.16
  6. Step 6: Final answer
    x = 84,229.19

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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.