Home / 142,756.70-214,135.05-89,995.10

Finding the Fourth Proportional to 142,756.70, 214,135.05 and 89,995.10

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Solution

The fourth proportional to 142,756.70, 214,135.05 and 89,995.10 is: 134,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,756.70 : 214,135.05 = 89,995.10 : x
  2. Step 2: Convert to fraction form
    142,756.70/214,135.05 = 89,995.10/x
  3. Step 3: Cross multiply
    142,756.70x = 214,135.05 × 89,995.10
  4. Step 4: Simplify right side
    142,756.70x = 19,271,105,238.26
  5. Step 5: Solve for x
    x = 19,271,105,238.26/142,756.70
  6. Step 6: Final answer
    x = 134,992.65

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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.