Home / 236,303.24-326,101.02-128,872.40

Finding the Fourth Proportional to 236,303.24, 326,101.02 and 128,872.40

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Solution

The fourth proportional to 236,303.24, 326,101.02 and 128,872.40 is: 177,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,303.24 : 326,101.02 = 128,872.40 : x
  2. Step 2: Convert to fraction form
    236,303.24/326,101.02 = 128,872.40/x
  3. Step 3: Cross multiply
    236,303.24x = 326,101.02 × 128,872.40
  4. Step 4: Simplify right side
    236,303.24x = 42,025,421,089.85
  5. Step 5: Solve for x
    x = 42,025,421,089.85/236,303.24
  6. Step 6: Final answer
    x = 177,845.30

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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.