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Finding the Fourth Proportional to 105,590.44, 145,714.98 and 57,842.74

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Solution

The fourth proportional to 105,590.44, 145,714.98 and 57,842.74 is: 79,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,590.44 : 145,714.98 = 57,842.74 : x
  2. Step 2: Convert to fraction form
    105,590.44/145,714.98 = 57,842.74/x
  3. Step 3: Cross multiply
    105,590.44x = 145,714.98 × 57,842.74
  4. Step 4: Simplify right side
    105,590.44x = 8,428,553,702.25
  5. Step 5: Solve for x
    x = 8,428,553,702.25/105,590.44
  6. Step 6: Final answer
    x = 79,823.08

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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.