Home / 114,928.60-172,004.10-100,931.80

Finding the Fourth Proportional to 114,928.60, 172,004.10 and 100,931.80

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Solution

The fourth proportional to 114,928.60, 172,004.10 and 100,931.80 is: 151,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,928.60 : 172,004.10 = 100,931.80 : x
  2. Step 2: Convert to fraction form
    114,928.60/172,004.10 = 100,931.80/x
  3. Step 3: Cross multiply
    114,928.60x = 172,004.10 × 100,931.80
  4. Step 4: Simplify right side
    114,928.60x = 17,360,683,420.38
  5. Step 5: Solve for x
    x = 17,360,683,420.38/114,928.60
  6. Step 6: Final answer
    x = 151,056.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.