Home / 137,725.48-190,045.56-77,283.64

Finding the Fourth Proportional to 137,725.48, 190,045.56 and 77,283.64

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Solution

The fourth proportional to 137,725.48, 190,045.56 and 77,283.64 is: 106,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,725.48 : 190,045.56 = 77,283.64 : x
  2. Step 2: Convert to fraction form
    137,725.48/190,045.56 = 77,283.64/x
  3. Step 3: Cross multiply
    137,725.48x = 190,045.56 × 77,283.64
  4. Step 4: Simplify right side
    137,725.48x = 14,687,412,642.64
  5. Step 5: Solve for x
    x = 14,687,412,642.64/137,725.48
  6. Step 6: Final answer
    x = 106,642.67

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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.