Home / 105,341.95-145,372.50-57,595.30

Finding the Fourth Proportional to 105,341.95, 145,372.50 and 57,595.30

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Solution

The fourth proportional to 105,341.95, 145,372.50 and 57,595.30 is: 79,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,341.95 : 145,372.50 = 57,595.30 : x
  2. Step 2: Convert to fraction form
    105,341.95/145,372.50 = 57,595.30/x
  3. Step 3: Cross multiply
    105,341.95x = 145,372.50 × 57,595.30
  4. Step 4: Simplify right side
    105,341.95x = 8,372,772,671.24
  5. Step 5: Solve for x
    x = 8,372,772,671.24/105,341.95
  6. Step 6: Final answer
    x = 79,481.85

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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.