Home / 118,666.89-163,758.93-64,217.80

Finding the Fourth Proportional to 118,666.89, 163,758.93 and 64,217.80

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Solution

The fourth proportional to 118,666.89, 163,758.93 and 64,217.80 is: 88,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.89 : 163,758.93 = 64,217.80 : x
  2. Step 2: Convert to fraction form
    118,666.89/163,758.93 = 64,217.80/x
  3. Step 3: Cross multiply
    118,666.89x = 163,758.93 × 64,217.80
  4. Step 4: Simplify right side
    118,666.89x = 10,516,237,871.79
  5. Step 5: Solve for x
    x = 10,516,237,871.79/118,666.89
  6. Step 6: Final answer
    x = 88,619.81

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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.