Home / 142,178.28-213,313.48-42,339.30

Finding the Fourth Proportional to 142,178.28, 213,313.48 and 42,339.30

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Solution

The fourth proportional to 142,178.28, 213,313.48 and 42,339.30 is: 63,522.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,178.28 : 213,313.48 = 42,339.30 : x
  2. Step 2: Convert to fraction form
    142,178.28/213,313.48 = 42,339.30/x
  3. Step 3: Cross multiply
    142,178.28x = 213,313.48 × 42,339.30
  4. Step 4: Simplify right side
    142,178.28x = 9,031,543,423.76
  5. Step 5: Solve for x
    x = 9,031,543,423.76/142,178.28
  6. Step 6: Final answer
    x = 63,522.67

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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.