Home / 104,386.79-144,053.15-56,639.13

Finding the Fourth Proportional to 104,386.79, 144,053.15 and 56,639.13

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Solution

The fourth proportional to 104,386.79, 144,053.15 and 56,639.13 is: 78,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,386.79 : 144,053.15 = 56,639.13 : x
  2. Step 2: Convert to fraction form
    104,386.79/144,053.15 = 56,639.13/x
  3. Step 3: Cross multiply
    104,386.79x = 144,053.15 × 56,639.13
  4. Step 4: Simplify right side
    104,386.79x = 8,159,044,806.56
  5. Step 5: Solve for x
    x = 8,159,044,806.56/104,386.79
  6. Step 6: Final answer
    x = 78,161.66

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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.