Home / 142,048.51-213,017.39-53,253.56

Finding the Fourth Proportional to 142,048.51, 213,017.39 and 53,253.56

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Solution

The fourth proportional to 142,048.51, 213,017.39 and 53,253.56 is: 79,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,048.51 : 213,017.39 = 53,253.56 : x
  2. Step 2: Convert to fraction form
    142,048.51/213,017.39 = 53,253.56/x
  3. Step 3: Cross multiply
    142,048.51x = 213,017.39 × 53,253.56
  4. Step 4: Simplify right side
    142,048.51x = 11,343,934,758.82
  5. Step 5: Solve for x
    x = 11,343,934,758.82/142,048.51
  6. Step 6: Final answer
    x = 79,859.58

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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.