Home / 134,127.50-185,100.81-76,777.34

Finding the Fourth Proportional to 134,127.50, 185,100.81 and 76,777.34

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Solution

The fourth proportional to 134,127.50, 185,100.81 and 76,777.34 is: 105,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,127.50 : 185,100.81 = 76,777.34 : x
  2. Step 2: Convert to fraction form
    134,127.50/185,100.81 = 76,777.34/x
  3. Step 3: Cross multiply
    134,127.50x = 185,100.81 × 76,777.34
  4. Step 4: Simplify right side
    134,127.50x = 14,211,547,823.65
  5. Step 5: Solve for x
    x = 14,211,547,823.65/134,127.50
  6. Step 6: Final answer
    x = 105,955.51

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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.