Home / 127,490.81-175,933.75-70,130.08

Finding the Fourth Proportional to 127,490.81, 175,933.75 and 70,130.08

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Solution

The fourth proportional to 127,490.81, 175,933.75 and 70,130.08 is: 96,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,490.81 : 175,933.75 = 70,130.08 : x
  2. Step 2: Convert to fraction form
    127,490.81/175,933.75 = 70,130.08/x
  3. Step 3: Cross multiply
    127,490.81x = 175,933.75 × 70,130.08
  4. Step 4: Simplify right side
    127,490.81x = 12,338,247,446.23
  5. Step 5: Solve for x
    x = 12,338,247,446.23/127,490.81
  6. Step 6: Final answer
    x = 96,777.54

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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.