Home / 105,242.07-145,227.22-57,495.41

Finding the Fourth Proportional to 105,242.07, 145,227.22 and 57,495.41

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Solution

The fourth proportional to 105,242.07, 145,227.22 and 57,495.41 is: 79,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,242.07 : 145,227.22 = 57,495.41 : x
  2. Step 2: Convert to fraction form
    105,242.07/145,227.22 = 57,495.41/x
  3. Step 3: Cross multiply
    105,242.07x = 145,227.22 × 57,495.41
  4. Step 4: Simplify right side
    105,242.07x = 8,349,898,557.06
  5. Step 5: Solve for x
    x = 8,349,898,557.06/105,242.07
  6. Step 6: Final answer
    x = 79,339.93

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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.