Home / 142,713.10-214,069.65-83,518.30

Finding the Fourth Proportional to 142,713.10, 214,069.65 and 83,518.30

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Solution

The fourth proportional to 142,713.10, 214,069.65 and 83,518.30 is: 125,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.10 : 214,069.65 = 83,518.30 : x
  2. Step 2: Convert to fraction form
    142,713.10/214,069.65 = 83,518.30/x
  3. Step 3: Cross multiply
    142,713.10x = 214,069.65 × 83,518.30
  4. Step 4: Simplify right side
    142,713.10x = 17,878,733,249.60
  5. Step 5: Solve for x
    x = 17,878,733,249.60/142,713.10
  6. Step 6: Final answer
    x = 125,277.45

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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.