Home / 103,574.19-142,931.12-58,859.31

Finding the Fourth Proportional to 103,574.19, 142,931.12 and 58,859.31

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Solution

The fourth proportional to 103,574.19, 142,931.12 and 58,859.31 is: 81,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.19 : 142,931.12 = 58,859.31 : x
  2. Step 2: Convert to fraction form
    103,574.19/142,931.12 = 58,859.31/x
  3. Step 3: Cross multiply
    103,574.19x = 142,931.12 × 58,859.31
  4. Step 4: Simplify right side
    103,574.19x = 8,412,826,806.43
  5. Step 5: Solve for x
    x = 8,412,826,806.43/103,574.19
  6. Step 6: Final answer
    x = 81,225.13

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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.