Home / 118,358.69-163,332.47-64,643.92

Finding the Fourth Proportional to 118,358.69, 163,332.47 and 64,643.92

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Solution

The fourth proportional to 118,358.69, 163,332.47 and 64,643.92 is: 89,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,358.69 : 163,332.47 = 64,643.92 : x
  2. Step 2: Convert to fraction form
    118,358.69/163,332.47 = 64,643.92/x
  3. Step 3: Cross multiply
    118,358.69x = 163,332.47 × 64,643.92
  4. Step 4: Simplify right side
    118,358.69x = 10,558,450,800.86
  5. Step 5: Solve for x
    x = 10,558,450,800.86/118,358.69
  6. Step 6: Final answer
    x = 89,207.23

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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.