Home / 77,610.86-116,934.90-70,123.12

Finding the Fourth Proportional to 77,610.86, 116,934.90 and 70,123.12

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Solution

The fourth proportional to 77,610.86, 116,934.90 and 70,123.12 is: 105,653.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,610.86 : 116,934.90 = 70,123.12 : x
  2. Step 2: Convert to fraction form
    77,610.86/116,934.90 = 70,123.12/x
  3. Step 3: Cross multiply
    77,610.86x = 116,934.90 × 70,123.12
  4. Step 4: Simplify right side
    77,610.86x = 8,199,840,024.89
  5. Step 5: Solve for x
    x = 8,199,840,024.89/77,610.86
  6. Step 6: Final answer
    x = 105,653.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.