Home / 91,215.50-136,710.93-64,777.10

Finding the Fourth Proportional to 91,215.50, 136,710.93 and 64,777.10

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Solution

The fourth proportional to 91,215.50, 136,710.93 and 64,777.10 is: 97,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,215.50 : 136,710.93 = 64,777.10 : x
  2. Step 2: Convert to fraction form
    91,215.50/136,710.93 = 64,777.10/x
  3. Step 3: Cross multiply
    91,215.50x = 136,710.93 × 64,777.10
  4. Step 4: Simplify right side
    91,215.50x = 8,855,737,583.70
  5. Step 5: Solve for x
    x = 8,855,737,583.70/91,215.50
  6. Step 6: Final answer
    x = 97,085.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.