Home / 157,008.16-216,522.32-121,141.36

Finding the Fourth Proportional to 157,008.16, 216,522.32 and 121,141.36

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Solution

The fourth proportional to 157,008.16, 216,522.32 and 121,141.36 is: 167,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,008.16 : 216,522.32 = 121,141.36 : x
  2. Step 2: Convert to fraction form
    157,008.16/216,522.32 = 121,141.36/x
  3. Step 3: Cross multiply
    157,008.16x = 216,522.32 × 121,141.36
  4. Step 4: Simplify right side
    157,008.16x = 26,229,808,315.16
  5. Step 5: Solve for x
    x = 26,229,808,315.16/157,008.16
  6. Step 6: Final answer
    x = 167,060.16

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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.