Home / 134,088.68-201,216.08-77,955.21

Finding the Fourth Proportional to 134,088.68, 201,216.08 and 77,955.21

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Solution

The fourth proportional to 134,088.68, 201,216.08 and 77,955.21 is: 116,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,088.68 : 201,216.08 = 77,955.21 : x
  2. Step 2: Convert to fraction form
    134,088.68/201,216.08 = 77,955.21/x
  3. Step 3: Cross multiply
    134,088.68x = 201,216.08 × 77,955.21
  4. Step 4: Simplify right side
    134,088.68x = 15,685,841,966.66
  5. Step 5: Solve for x
    x = 15,685,841,966.66/134,088.68
  6. Step 6: Final answer
    x = 116,981.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.