Home / 105,699.20-145,780.16-92,925.23

Finding the Fourth Proportional to 105,699.20, 145,780.16 and 92,925.23

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Solution

The fourth proportional to 105,699.20, 145,780.16 and 92,925.23 is: 128,162.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,699.20 : 145,780.16 = 92,925.23 : x
  2. Step 2: Convert to fraction form
    105,699.20/145,780.16 = 92,925.23/x
  3. Step 3: Cross multiply
    105,699.20x = 145,780.16 × 92,925.23
  4. Step 4: Simplify right side
    105,699.20x = 13,546,653,703.91
  5. Step 5: Solve for x
    x = 13,546,653,703.91/105,699.20
  6. Step 6: Final answer
    x = 128,162.32

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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.