Home / 123,030.94-169,782.70-66,442.32

Finding the Fourth Proportional to 123,030.94, 169,782.70 and 66,442.32

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Solution

The fourth proportional to 123,030.94, 169,782.70 and 66,442.32 is: 91,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030.94 : 169,782.70 = 66,442.32 : x
  2. Step 2: Convert to fraction form
    123,030.94/169,782.70 = 66,442.32/x
  3. Step 3: Cross multiply
    123,030.94x = 169,782.70 × 66,442.32
  4. Step 4: Simplify right side
    123,030.94x = 11,280,756,483.86
  5. Step 5: Solve for x
    x = 11,280,756,483.86/123,030.94
  6. Step 6: Final answer
    x = 91,690.40

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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.