Home / 103,859.02-143,326.08-57,921.57

Finding the Fourth Proportional to 103,859.02, 143,326.08 and 57,921.57

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Solution

The fourth proportional to 103,859.02, 143,326.08 and 57,921.57 is: 79,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,859.02 : 143,326.08 = 57,921.57 : x
  2. Step 2: Convert to fraction form
    103,859.02/143,326.08 = 57,921.57/x
  3. Step 3: Cross multiply
    103,859.02x = 143,326.08 × 57,921.57
  4. Step 4: Simplify right side
    103,859.02x = 8,301,671,575.55
  5. Step 5: Solve for x
    x = 8,301,671,575.55/103,859.02
  6. Step 6: Final answer
    x = 79,932.12

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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.