Home / 145,437.72-218,082.76-66,484.28

Finding the Fourth Proportional to 145,437.72, 218,082.76 and 66,484.28

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Solution

The fourth proportional to 145,437.72, 218,082.76 and 66,484.28 is: 99,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,437.72 : 218,082.76 = 66,484.28 : x
  2. Step 2: Convert to fraction form
    145,437.72/218,082.76 = 66,484.28/x
  3. Step 3: Cross multiply
    145,437.72x = 218,082.76 × 66,484.28
  4. Step 4: Simplify right side
    145,437.72x = 14,499,075,279.01
  5. Step 5: Solve for x
    x = 14,499,075,279.01/145,437.72
  6. Step 6: Final answer
    x = 99,692.67

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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.