Home / 147,030.80-220,547.90-139,860.16

Finding the Fourth Proportional to 147,030.80, 220,547.90 and 139,860.16

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Solution

The fourth proportional to 147,030.80, 220,547.90 and 139,860.16 is: 209,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,030.80 : 220,547.90 = 139,860.16 : x
  2. Step 2: Convert to fraction form
    147,030.80/220,547.90 = 139,860.16/x
  3. Step 3: Cross multiply
    147,030.80x = 220,547.90 × 139,860.16
  4. Step 4: Simplify right side
    147,030.80x = 30,845,864,581.66
  5. Step 5: Solve for x
    x = 30,845,864,581.66/147,030.80
  6. Step 6: Final answer
    x = 209,791.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.