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Finding the Fourth Proportional to 99,136.74, 136,808.88 and 53,814.76

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Solution

The fourth proportional to 99,136.74, 136,808.88 and 53,814.76 is: 74,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,136.74 : 136,808.88 = 53,814.76 : x
  2. Step 2: Convert to fraction form
    99,136.74/136,808.88 = 53,814.76/x
  3. Step 3: Cross multiply
    99,136.74x = 136,808.88 × 53,814.76
  4. Step 4: Simplify right side
    99,136.74x = 7,362,336,768.32
  5. Step 5: Solve for x
    x = 7,362,336,768.32/99,136.74
  6. Step 6: Final answer
    x = 74,264.46

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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.