Home / 134,988.04-186,290.76-77,626.68

Finding the Fourth Proportional to 134,988.04, 186,290.76 and 77,626.68

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Solution

The fourth proportional to 134,988.04, 186,290.76 and 77,626.68 is: 107,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,988.04 : 186,290.76 = 77,626.68 : x
  2. Step 2: Convert to fraction form
    134,988.04/186,290.76 = 77,626.68/x
  3. Step 3: Cross multiply
    134,988.04x = 186,290.76 × 77,626.68
  4. Step 4: Simplify right side
    134,988.04x = 14,461,133,213.48
  5. Step 5: Solve for x
    x = 14,461,133,213.48/134,988.04
  6. Step 6: Final answer
    x = 107,129.00

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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.