Home / 141,700.61-195,537.98-78,038.42

Finding the Fourth Proportional to 141,700.61, 195,537.98 and 78,038.42

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Solution

The fourth proportional to 141,700.61, 195,537.98 and 78,038.42 is: 107,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,700.61 : 195,537.98 = 78,038.42 : x
  2. Step 2: Convert to fraction form
    141,700.61/195,537.98 = 78,038.42/x
  3. Step 3: Cross multiply
    141,700.61x = 195,537.98 × 78,038.42
  4. Step 4: Simplify right side
    141,700.61x = 15,259,474,226.60
  5. Step 5: Solve for x
    x = 15,259,474,226.60/141,700.61
  6. Step 6: Final answer
    x = 107,688.13

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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.