Home / 104,127.78-143,643.40-61,079.12

Finding the Fourth Proportional to 104,127.78, 143,643.40 and 61,079.12

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Solution

The fourth proportional to 104,127.78, 143,643.40 and 61,079.12 is: 84,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,127.78 : 143,643.40 = 61,079.12 : x
  2. Step 2: Convert to fraction form
    104,127.78/143,643.40 = 61,079.12/x
  3. Step 3: Cross multiply
    104,127.78x = 143,643.40 × 61,079.12
  4. Step 4: Simplify right side
    104,127.78x = 8,773,612,465.81
  5. Step 5: Solve for x
    x = 8,773,612,465.81/104,127.78
  6. Step 6: Final answer
    x = 84,258.13

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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.