Home / 157,950.24-217,970.94-86,330.76

Finding the Fourth Proportional to 157,950.24, 217,970.94 and 86,330.76

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Solution

The fourth proportional to 157,950.24, 217,970.94 and 86,330.76 is: 119,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,950.24 : 217,970.94 = 86,330.76 : x
  2. Step 2: Convert to fraction form
    157,950.24/217,970.94 = 86,330.76/x
  3. Step 3: Cross multiply
    157,950.24x = 217,970.94 × 86,330.76
  4. Step 4: Simplify right side
    157,950.24x = 18,817,596,908.11
  5. Step 5: Solve for x
    x = 18,817,596,908.11/157,950.24
  6. Step 6: Final answer
    x = 119,136.23

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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.