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Finding the Fourth Proportional to 104,854.40, 144,700.80 and 57,108.68

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Solution

The fourth proportional to 104,854.40, 144,700.80 and 57,108.68 is: 78,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,854.40 : 144,700.80 = 57,108.68 : x
  2. Step 2: Convert to fraction form
    104,854.40/144,700.80 = 57,108.68/x
  3. Step 3: Cross multiply
    104,854.40x = 144,700.80 × 57,108.68
  4. Step 4: Simplify right side
    104,854.40x = 8,263,671,682.94
  5. Step 5: Solve for x
    x = 8,263,671,682.94/104,854.40
  6. Step 6: Final answer
    x = 78,810.92

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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.