Home / 128,301.10-177,048.36-70,937.10

Finding the Fourth Proportional to 128,301.10, 177,048.36 and 70,937.10

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Solution

The fourth proportional to 128,301.10, 177,048.36 and 70,937.10 is: 97,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,301.10 : 177,048.36 = 70,937.10 : x
  2. Step 2: Convert to fraction form
    128,301.10/177,048.36 = 70,937.10/x
  3. Step 3: Cross multiply
    128,301.10x = 177,048.36 × 70,937.10
  4. Step 4: Simplify right side
    128,301.10x = 12,559,297,218.16
  5. Step 5: Solve for x
    x = 12,559,297,218.16/128,301.10
  6. Step 6: Final answer
    x = 97,889.24

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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.