Home / 143,534.64-215,302.08-68,637.12

Finding the Fourth Proportional to 143,534.64, 215,302.08 and 68,637.12

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Solution

The fourth proportional to 143,534.64, 215,302.08 and 68,637.12 is: 102,955.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,534.64 : 215,302.08 = 68,637.12 : x
  2. Step 2: Convert to fraction form
    143,534.64/215,302.08 = 68,637.12/x
  3. Step 3: Cross multiply
    143,534.64x = 215,302.08 × 68,637.12
  4. Step 4: Simplify right side
    143,534.64x = 14,777,714,701.21
  5. Step 5: Solve for x
    x = 14,777,714,701.21/143,534.64
  6. Step 6: Final answer
    x = 102,955.74

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1.5x scale

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.