Home / 157,019.14-216,681.78-89,042.32

Finding the Fourth Proportional to 157,019.14, 216,681.78 and 89,042.32

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Solution

The fourth proportional to 157,019.14, 216,681.78 and 89,042.32 is: 122,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,019.14 : 216,681.78 = 89,042.32 : x
  2. Step 2: Convert to fraction form
    157,019.14/216,681.78 = 89,042.32/x
  3. Step 3: Cross multiply
    157,019.14x = 216,681.78 × 89,042.32
  4. Step 4: Simplify right side
    157,019.14x = 19,293,848,392.93
  5. Step 5: Solve for x
    x = 19,293,848,392.93/157,019.14
  6. Step 6: Final answer
    x = 122,875.77

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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.