Home / 123,547.47-170,495.73-66,958.86

Finding the Fourth Proportional to 123,547.47, 170,495.73 and 66,958.86

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Solution

The fourth proportional to 123,547.47, 170,495.73 and 66,958.86 is: 92,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,547.47 : 170,495.73 = 66,958.86 : x
  2. Step 2: Convert to fraction form
    123,547.47/170,495.73 = 66,958.86/x
  3. Step 3: Cross multiply
    123,547.47x = 170,495.73 × 66,958.86
  4. Step 4: Simplify right side
    123,547.47x = 11,416,199,715.67
  5. Step 5: Solve for x
    x = 11,416,199,715.67/123,547.47
  6. Step 6: Final answer
    x = 92,403.35

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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.