Home / 156,785.14-216,362.93-89,716.98

Finding the Fourth Proportional to 156,785.14, 216,362.93 and 89,716.98

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Solution

The fourth proportional to 156,785.14, 216,362.93 and 89,716.98 is: 123,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,785.14 : 216,362.93 = 89,716.98 : x
  2. Step 2: Convert to fraction form
    156,785.14/216,362.93 = 89,716.98/x
  3. Step 3: Cross multiply
    156,785.14x = 216,362.93 × 89,716.98
  4. Step 4: Simplify right side
    156,785.14x = 19,411,428,663.55
  5. Step 5: Solve for x
    x = 19,411,428,663.55/156,785.14
  6. Step 6: Final answer
    x = 123,809.11

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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.