Home / 106,547.75-147,066.62-62,980.66

Finding the Fourth Proportional to 106,547.75, 147,066.62 and 62,980.66

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Solution

The fourth proportional to 106,547.75, 147,066.62 and 62,980.66 is: 86,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,547.75 : 147,066.62 = 62,980.66 : x
  2. Step 2: Convert to fraction form
    106,547.75/147,066.62 = 62,980.66/x
  3. Step 3: Cross multiply
    106,547.75x = 147,066.62 × 62,980.66
  4. Step 4: Simplify right side
    106,547.75x = 9,262,352,791.57
  5. Step 5: Solve for x
    x = 9,262,352,791.57/106,547.75
  6. Step 6: Final answer
    x = 86,931.47

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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.