Home / 134,259.36-185,282.64-76,909.20

Finding the Fourth Proportional to 134,259.36, 185,282.64 and 76,909.20

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Solution

The fourth proportional to 134,259.36, 185,282.64 and 76,909.20 is: 106,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,259.36 : 185,282.64 = 76,909.20 : x
  2. Step 2: Convert to fraction form
    134,259.36/185,282.64 = 76,909.20/x
  3. Step 3: Cross multiply
    134,259.36x = 185,282.64 × 76,909.20
  4. Step 4: Simplify right side
    134,259.36x = 14,249,939,616.29
  5. Step 5: Solve for x
    x = 14,249,939,616.29/134,259.36
  6. Step 6: Final answer
    x = 106,137.40

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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.