Home / 104,225.19-143,830.28-56,478.57

Finding the Fourth Proportional to 104,225.19, 143,830.28 and 56,478.57

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Solution

The fourth proportional to 104,225.19, 143,830.28 and 56,478.57 is: 77,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,225.19 : 143,830.28 = 56,478.57 : x
  2. Step 2: Convert to fraction form
    104,225.19/143,830.28 = 56,478.57/x
  3. Step 3: Cross multiply
    104,225.19x = 143,830.28 × 56,478.57
  4. Step 4: Simplify right side
    104,225.19x = 8,123,328,254.71
  5. Step 5: Solve for x
    x = 8,123,328,254.71/104,225.19
  6. Step 6: Final answer
    x = 77,940.16

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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.