Home / 153,152.53-229,578.81-85,717.50

Finding the Fourth Proportional to 153,152.53, 229,578.81 and 85,717.50

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Solution

The fourth proportional to 153,152.53, 229,578.81 and 85,717.50 is: 128,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,152.53 : 229,578.81 = 85,717.50 : x
  2. Step 2: Convert to fraction form
    153,152.53/229,578.81 = 85,717.50/x
  3. Step 3: Cross multiply
    153,152.53x = 229,578.81 × 85,717.50
  4. Step 4: Simplify right side
    153,152.53x = 19,678,921,646.18
  5. Step 5: Solve for x
    x = 19,678,921,646.18/153,152.53
  6. Step 6: Final answer
    x = 128,492.31

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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.