Home / 154,749.40-213,647.36-101,124.16

Finding the Fourth Proportional to 154,749.40, 213,647.36 and 101,124.16

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Solution

The fourth proportional to 154,749.40, 213,647.36 and 101,124.16 is: 139,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,749.40 : 213,647.36 = 101,124.16 : x
  2. Step 2: Convert to fraction form
    154,749.40/213,647.36 = 101,124.16/x
  3. Step 3: Cross multiply
    154,749.40x = 213,647.36 × 101,124.16
  4. Step 4: Simplify right side
    154,749.40x = 21,604,909,816.22
  5. Step 5: Solve for x
    x = 21,604,909,816.22/154,749.40
  6. Step 6: Final answer
    x = 139,612.24

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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.