Home / 98,758.14-136,285.65-56,315.76

Finding the Fourth Proportional to 98,758.14, 136,285.65 and 56,315.76

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Solution

The fourth proportional to 98,758.14, 136,285.65 and 56,315.76 is: 77,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,758.14 : 136,285.65 = 56,315.76 : x
  2. Step 2: Convert to fraction form
    98,758.14/136,285.65 = 56,315.76/x
  3. Step 3: Cross multiply
    98,758.14x = 136,285.65 × 56,315.76
  4. Step 4: Simplify right side
    98,758.14x = 7,675,029,956.84
  5. Step 5: Solve for x
    x = 7,675,029,956.84/98,758.14
  6. Step 6: Final answer
    x = 77,715.42

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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.