Home / 128,042.85-176,708.93-70,693.23

Finding the Fourth Proportional to 128,042.85, 176,708.93 and 70,693.23

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Solution

The fourth proportional to 128,042.85, 176,708.93 and 70,693.23 is: 97,562.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,042.85 : 176,708.93 = 70,693.23 : x
  2. Step 2: Convert to fraction form
    128,042.85/176,708.93 = 70,693.23/x
  3. Step 3: Cross multiply
    128,042.85x = 176,708.93 × 70,693.23
  4. Step 4: Simplify right side
    128,042.85x = 12,492,124,678.08
  5. Step 5: Solve for x
    x = 12,492,124,678.08/128,042.85
  6. Step 6: Final answer
    x = 97,562.06

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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.