Home / 115,715.37-159,701.98-64,730.93

Finding the Fourth Proportional to 115,715.37, 159,701.98 and 64,730.93

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Solution

The fourth proportional to 115,715.37, 159,701.98 and 64,730.93 is: 89,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,715.37 : 159,701.98 = 64,730.93 : x
  2. Step 2: Convert to fraction form
    115,715.37/159,701.98 = 64,730.93/x
  3. Step 3: Cross multiply
    115,715.37x = 159,701.98 × 64,730.93
  4. Step 4: Simplify right side
    115,715.37x = 10,337,657,747.60
  5. Step 5: Solve for x
    x = 10,337,657,747.60/115,715.37
  6. Step 6: Final answer
    x = 89,336.95

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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.