Home / 103,817.95-143,273.18-57,877.58

Finding the Fourth Proportional to 103,817.95, 143,273.18 and 57,877.58

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Solution

The fourth proportional to 103,817.95, 143,273.18 and 57,877.58 is: 79,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,817.95 : 143,273.18 = 57,877.58 : x
  2. Step 2: Convert to fraction form
    103,817.95/143,273.18 = 57,877.58/x
  3. Step 3: Cross multiply
    103,817.95x = 143,273.18 × 57,877.58
  4. Step 4: Simplify right side
    103,817.95x = 8,292,303,931.55
  5. Step 5: Solve for x
    x = 8,292,303,931.55/103,817.95
  6. Step 6: Final answer
    x = 79,873.51

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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.