Home / 157,029.69-216,681.31-106,153.12

Finding the Fourth Proportional to 157,029.69, 216,681.31 and 106,153.12

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Solution

The fourth proportional to 157,029.69, 216,681.31 and 106,153.12 is: 146,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,029.69 : 216,681.31 = 106,153.12 : x
  2. Step 2: Convert to fraction form
    157,029.69/216,681.31 = 106,153.12/x
  3. Step 3: Cross multiply
    157,029.69x = 216,681.31 × 106,153.12
  4. Step 4: Simplify right side
    157,029.69x = 23,001,397,102.19
  5. Step 5: Solve for x
    x = 23,001,397,102.19/157,029.69
  6. Step 6: Final answer
    x = 146,478.01

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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.