Home / 157,530.10-236,330.40-57,688.30

Finding the Fourth Proportional to 157,530.10, 236,330.40 and 57,688.30

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Solution

The fourth proportional to 157,530.10, 236,330.40 and 57,688.30 is: 86,545.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,530.10 : 236,330.40 = 57,688.30 : x
  2. Step 2: Convert to fraction form
    157,530.10/236,330.40 = 57,688.30/x
  3. Step 3: Cross multiply
    157,530.10x = 236,330.40 × 57,688.30
  4. Step 4: Simplify right side
    157,530.10x = 13,633,499,014.32
  5. Step 5: Solve for x
    x = 13,633,499,014.32/157,530.10
  6. Step 6: Final answer
    x = 86,545.36

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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.