Home / 114,238.29-157,543.49-78,365.01

Finding the Fourth Proportional to 114,238.29, 157,543.49 and 78,365.01

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Solution

The fourth proportional to 114,238.29, 157,543.49 and 78,365.01 is: 108,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,238.29 : 157,543.49 = 78,365.01 : x
  2. Step 2: Convert to fraction form
    114,238.29/157,543.49 = 78,365.01/x
  3. Step 3: Cross multiply
    114,238.29x = 157,543.49 × 78,365.01
  4. Step 4: Simplify right side
    114,238.29x = 12,345,896,777.46
  5. Step 5: Solve for x
    x = 12,345,896,777.46/114,238.29
  6. Step 6: Final answer
    x = 108,071.44

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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.