Home / 102,396.93-141,307.44-57,074.40

Finding the Fourth Proportional to 102,396.93, 141,307.44 and 57,074.40

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Solution

The fourth proportional to 102,396.93, 141,307.44 and 57,074.40 is: 78,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,396.93 : 141,307.44 = 57,074.40 : x
  2. Step 2: Convert to fraction form
    102,396.93/141,307.44 = 57,074.40/x
  3. Step 3: Cross multiply
    102,396.93x = 141,307.44 × 57,074.40
  4. Step 4: Simplify right side
    102,396.93x = 8,065,037,353.54
  5. Step 5: Solve for x
    x = 8,065,037,353.54/102,396.93
  6. Step 6: Final answer
    x = 78,762.49

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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.