Home / 153,688.24-212,009.15-125,039.90

Finding the Fourth Proportional to 153,688.24, 212,009.15 and 125,039.90

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Solution

The fourth proportional to 153,688.24, 212,009.15 and 125,039.90 is: 172,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,688.24 : 212,009.15 = 125,039.90 : x
  2. Step 2: Convert to fraction form
    153,688.24/212,009.15 = 125,039.90/x
  3. Step 3: Cross multiply
    153,688.24x = 212,009.15 × 125,039.90
  4. Step 4: Simplify right side
    153,688.24x = 26,509,603,054.36
  5. Step 5: Solve for x
    x = 26,509,603,054.36/153,688.24
  6. Step 6: Final answer
    x = 172,489.47

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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.