Home / 125,427.74-173,123.46-77,653.94

Finding the Fourth Proportional to 125,427.74, 173,123.46 and 77,653.94

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Solution

The fourth proportional to 125,427.74, 173,123.46 and 77,653.94 is: 107,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,427.74 : 173,123.46 = 77,653.94 : x
  2. Step 2: Convert to fraction form
    125,427.74/173,123.46 = 77,653.94/x
  3. Step 3: Cross multiply
    125,427.74x = 173,123.46 × 77,653.94
  4. Step 4: Simplify right side
    125,427.74x = 13,443,717,909.82
  5. Step 5: Solve for x
    x = 13,443,717,909.82/125,427.74
  6. Step 6: Final answer
    x = 107,182.98

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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.