Home / 176,740.28-243,899.64-105,118.72

Finding the Fourth Proportional to 176,740.28, 243,899.64 and 105,118.72

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Solution

The fourth proportional to 176,740.28, 243,899.64 and 105,118.72 is: 145,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,740.28 : 243,899.64 = 105,118.72 : x
  2. Step 2: Convert to fraction form
    176,740.28/243,899.64 = 105,118.72/x
  3. Step 3: Cross multiply
    176,740.28x = 243,899.64 × 105,118.72
  4. Step 4: Simplify right side
    176,740.28x = 25,638,417,965.26
  5. Step 5: Solve for x
    x = 25,638,417,965.26/176,740.28
  6. Step 6: Final answer
    x = 145,062.68

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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.