Home / 149,715.40-224,421.90-74,720.20

Finding the Fourth Proportional to 149,715.40, 224,421.90 and 74,720.20

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Solution

The fourth proportional to 149,715.40, 224,421.90 and 74,720.20 is: 112,004.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,715.40 : 224,421.90 = 74,720.20 : x
  2. Step 2: Convert to fraction form
    149,715.40/224,421.90 = 74,720.20/x
  3. Step 3: Cross multiply
    149,715.40x = 224,421.90 × 74,720.20
  4. Step 4: Simplify right side
    149,715.40x = 16,768,849,252.38
  5. Step 5: Solve for x
    x = 16,768,849,252.38/149,715.40
  6. Step 6: Final answer
    x = 112,004.84

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1.5x scale

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.