Home / 104,143.89-143,718.65-56,397.29

Finding the Fourth Proportional to 104,143.89, 143,718.65 and 56,397.29

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Solution

The fourth proportional to 104,143.89, 143,718.65 and 56,397.29 is: 77,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,143.89 : 143,718.65 = 56,397.29 : x
  2. Step 2: Convert to fraction form
    104,143.89/143,718.65 = 56,397.29/x
  3. Step 3: Cross multiply
    104,143.89x = 143,718.65 × 56,397.29
  4. Step 4: Simplify right side
    104,143.89x = 8,105,342,382.46
  5. Step 5: Solve for x
    x = 8,105,342,382.46/104,143.89
  6. Step 6: Final answer
    x = 77,828.30

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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.