Home / 134,966.81-186,265.21-77,624.69

Finding the Fourth Proportional to 134,966.81, 186,265.21 and 77,624.69

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Solution

The fourth proportional to 134,966.81, 186,265.21 and 77,624.69 is: 107,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,966.81 : 186,265.21 = 77,624.69 : x
  2. Step 2: Convert to fraction form
    134,966.81/186,265.21 = 77,624.69/x
  3. Step 3: Cross multiply
    134,966.81x = 186,265.21 × 77,624.69
  4. Step 4: Simplify right side
    134,966.81x = 14,458,779,184.03
  5. Step 5: Solve for x
    x = 14,458,779,184.03/134,966.81
  6. Step 6: Final answer
    x = 107,128.41

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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.