Home / 105,211.83-145,192.33-57,465.29

Finding the Fourth Proportional to 105,211.83, 145,192.33 and 57,465.29

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Solution

The fourth proportional to 105,211.83, 145,192.33 and 57,465.29 is: 79,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,211.83 : 145,192.33 = 57,465.29 : x
  2. Step 2: Convert to fraction form
    105,211.83/145,192.33 = 57,465.29/x
  3. Step 3: Cross multiply
    105,211.83x = 145,192.33 × 57,465.29
  4. Step 4: Simplify right side
    105,211.83x = 8,343,519,349.23
  5. Step 5: Solve for x
    x = 8,343,519,349.23/105,211.83
  6. Step 6: Final answer
    x = 79,302.10

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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.