Home / 163,465.08-225,729.36-103,142.76

Finding the Fourth Proportional to 163,465.08, 225,729.36 and 103,142.76

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Solution

The fourth proportional to 163,465.08, 225,729.36 and 103,142.76 is: 142,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,465.08 : 225,729.36 = 103,142.76 : x
  2. Step 2: Convert to fraction form
    163,465.08/225,729.36 = 103,142.76/x
  3. Step 3: Cross multiply
    163,465.08x = 225,729.36 × 103,142.76
  4. Step 4: Simplify right side
    163,465.08x = 23,282,349,203.43
  5. Step 5: Solve for x
    x = 23,282,349,203.43/163,465.08
  6. Step 6: Final answer
    x = 142,430.11

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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.