Home / 163,943.20-245,914.80-157,031.20

Finding the Fourth Proportional to 163,943.20, 245,914.80 and 157,031.20

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Solution

The fourth proportional to 163,943.20, 245,914.80 and 157,031.20 is: 235,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,943.20 : 245,914.80 = 157,031.20 : x
  2. Step 2: Convert to fraction form
    163,943.20/245,914.80 = 157,031.20/x
  3. Step 3: Cross multiply
    163,943.20x = 245,914.80 × 157,031.20
  4. Step 4: Simplify right side
    163,943.20x = 38,616,296,141.76
  5. Step 5: Solve for x
    x = 38,616,296,141.76/163,943.20
  6. Step 6: Final answer
    x = 235,546.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.