Home / 118,126.96-162,666.78-105,547.12

Finding the Fourth Proportional to 118,126.96, 162,666.78 and 105,547.12

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Solution

The fourth proportional to 118,126.96, 162,666.78 and 105,547.12 is: 145,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,126.96 : 162,666.78 = 105,547.12 : x
  2. Step 2: Convert to fraction form
    118,126.96/162,666.78 = 105,547.12/x
  3. Step 3: Cross multiply
    118,126.96x = 162,666.78 × 105,547.12
  4. Step 4: Simplify right side
    118,126.96x = 17,169,010,148.67
  5. Step 5: Solve for x
    x = 17,169,010,148.67/118,126.96
  6. Step 6: Final answer
    x = 145,343.71

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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.