Home / 128,332.08-177,093-70,967.79

Finding the Fourth Proportional to 128,332.08, 177,093 and 70,967.79

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Solution

The fourth proportional to 128,332.08, 177,093 and 70,967.79 is: 97,932.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,332.08 : 177,093 = 70,967.79 : x
  2. Step 2: Convert to fraction form
    128,332.08/177,093 = 70,967.79/x
  3. Step 3: Cross multiply
    128,332.08x = 177,093 × 70,967.79
  4. Step 4: Simplify right side
    128,332.08x = 12,567,898,834.47
  5. Step 5: Solve for x
    x = 12,567,898,834.47/128,332.08
  6. Step 6: Final answer
    x = 97,932.64

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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.