Home / 142,223.28-213,343.11-53,477.55

Finding the Fourth Proportional to 142,223.28, 213,343.11 and 53,477.55

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Solution

The fourth proportional to 142,223.28, 213,343.11 and 53,477.55 is: 80,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,223.28 : 213,343.11 = 53,477.55 : x
  2. Step 2: Convert to fraction form
    142,223.28/213,343.11 = 53,477.55/x
  3. Step 3: Cross multiply
    142,223.28x = 213,343.11 × 53,477.55
  4. Step 4: Simplify right side
    142,223.28x = 11,409,066,681.77
  5. Step 5: Solve for x
    x = 11,409,066,681.77/142,223.28
  6. Step 6: Final answer
    x = 80,219.41

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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.