Home / 77,109.38-106,290.60-70,923.02

Finding the Fourth Proportional to 77,109.38, 106,290.60 and 70,923.02

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Solution

The fourth proportional to 77,109.38, 106,290.60 and 70,923.02 is: 97,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,109.38 : 106,290.60 = 70,923.02 : x
  2. Step 2: Convert to fraction form
    77,109.38/106,290.60 = 70,923.02/x
  3. Step 3: Cross multiply
    77,109.38x = 106,290.60 × 70,923.02
  4. Step 4: Simplify right side
    77,109.38x = 7,538,450,349.61
  5. Step 5: Solve for x
    x = 7,538,450,349.61/77,109.38
  6. Step 6: Final answer
    x = 97,763.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.