Home / 134,890.40-186,154.98-77,548.34

Finding the Fourth Proportional to 134,890.40, 186,154.98 and 77,548.34

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Solution

The fourth proportional to 134,890.40, 186,154.98 and 77,548.34 is: 107,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.40 : 186,154.98 = 77,548.34 : x
  2. Step 2: Convert to fraction form
    134,890.40/186,154.98 = 77,548.34/x
  3. Step 3: Cross multiply
    134,890.40x = 186,154.98 × 77,548.34
  4. Step 4: Simplify right side
    134,890.40x = 14,436,009,681.73
  5. Step 5: Solve for x
    x = 14,436,009,681.73/134,890.40
  6. Step 6: Final answer
    x = 107,020.29

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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.