Home / 103,484.88-142,807.20-57,547.32

Finding the Fourth Proportional to 103,484.88, 142,807.20 and 57,547.32

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Solution

The fourth proportional to 103,484.88, 142,807.20 and 57,547.32 is: 79,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,484.88 : 142,807.20 = 57,547.32 : x
  2. Step 2: Convert to fraction form
    103,484.88/142,807.20 = 57,547.32/x
  3. Step 3: Cross multiply
    103,484.88x = 142,807.20 × 57,547.32
  4. Step 4: Simplify right side
    103,484.88x = 8,218,171,636.70
  5. Step 5: Solve for x
    x = 8,218,171,636.70/103,484.88
  6. Step 6: Final answer
    x = 79,414.23

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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.