Home / 147,969.18-204,148.45-83,430.30

Finding the Fourth Proportional to 147,969.18, 204,148.45 and 83,430.30

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Solution

The fourth proportional to 147,969.18, 204,148.45 and 83,430.30 is: 115,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,969.18 : 204,148.45 = 83,430.30 : x
  2. Step 2: Convert to fraction form
    147,969.18/204,148.45 = 83,430.30/x
  3. Step 3: Cross multiply
    147,969.18x = 204,148.45 × 83,430.30
  4. Step 4: Simplify right side
    147,969.18x = 17,032,167,297.88
  5. Step 5: Solve for x
    x = 17,032,167,297.88/147,969.18
  6. Step 6: Final answer
    x = 115,106.18

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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.