Home / 130,771.46-180,462.93-77,058.74

Finding the Fourth Proportional to 130,771.46, 180,462.93 and 77,058.74

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Solution

The fourth proportional to 130,771.46, 180,462.93 and 77,058.74 is: 106,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,771.46 : 180,462.93 = 77,058.74 : x
  2. Step 2: Convert to fraction form
    130,771.46/180,462.93 = 77,058.74/x
  3. Step 3: Cross multiply
    130,771.46x = 180,462.93 × 77,058.74
  4. Step 4: Simplify right side
    130,771.46x = 13,906,246,002.51
  5. Step 5: Solve for x
    x = 13,906,246,002.51/130,771.46
  6. Step 6: Final answer
    x = 106,340.07

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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.