Home / 128,277.54-177,007.67-70,909.14

Finding the Fourth Proportional to 128,277.54, 177,007.67 and 70,909.14

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Solution

The fourth proportional to 128,277.54, 177,007.67 and 70,909.14 is: 97,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,277.54 : 177,007.67 = 70,909.14 : x
  2. Step 2: Convert to fraction form
    128,277.54/177,007.67 = 70,909.14/x
  3. Step 3: Cross multiply
    128,277.54x = 177,007.67 × 70,909.14
  4. Step 4: Simplify right side
    128,277.54x = 12,551,461,653.10
  5. Step 5: Solve for x
    x = 12,551,461,653.10/128,277.54
  6. Step 6: Final answer
    x = 97,846.14

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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.