Home / 134,721.32-185,915.34-77,364.38

Finding the Fourth Proportional to 134,721.32, 185,915.34 and 77,364.38

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Solution

The fourth proportional to 134,721.32, 185,915.34 and 77,364.38 is: 106,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,721.32 : 185,915.34 = 77,364.38 : x
  2. Step 2: Convert to fraction form
    134,721.32/185,915.34 = 77,364.38/x
  3. Step 3: Cross multiply
    134,721.32x = 185,915.34 × 77,364.38
  4. Step 4: Simplify right side
    134,721.32x = 14,383,225,476.38
  5. Step 5: Solve for x
    x = 14,383,225,476.38/134,721.32
  6. Step 6: Final answer
    x = 106,762.80

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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.