Home / 135,248.32-186,656.63-77,889.52

Finding the Fourth Proportional to 135,248.32, 186,656.63 and 77,889.52

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Solution

The fourth proportional to 135,248.32, 186,656.63 and 77,889.52 is: 107,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,248.32 : 186,656.63 = 77,889.52 : x
  2. Step 2: Convert to fraction form
    135,248.32/186,656.63 = 77,889.52/x
  3. Step 3: Cross multiply
    135,248.32x = 186,656.63 × 77,889.52
  4. Step 4: Simplify right side
    135,248.32x = 14,538,595,315.52
  5. Step 5: Solve for x
    x = 14,538,595,315.52/135,248.32
  6. Step 6: Final answer
    x = 107,495.57

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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.