Home / 105,337.53-145,365.77-57,590.87

Finding the Fourth Proportional to 105,337.53, 145,365.77 and 57,590.87

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Solution

The fourth proportional to 105,337.53, 145,365.77 and 57,590.87 is: 79,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,337.53 : 145,365.77 = 57,590.87 : x
  2. Step 2: Convert to fraction form
    105,337.53/145,365.77 = 57,590.87/x
  3. Step 3: Cross multiply
    105,337.53x = 145,365.77 × 57,590.87
  4. Step 4: Simplify right side
    105,337.53x = 8,371,740,147.74
  5. Step 5: Solve for x
    x = 8,371,740,147.74/105,337.53
  6. Step 6: Final answer
    x = 79,475.38

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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.