Home / 137,886.02-190,261.98-77,445.08

Finding the Fourth Proportional to 137,886.02, 190,261.98 and 77,445.08

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Solution

The fourth proportional to 137,886.02, 190,261.98 and 77,445.08 is: 106,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,886.02 : 190,261.98 = 77,445.08 : x
  2. Step 2: Convert to fraction form
    137,886.02/190,261.98 = 77,445.08/x
  3. Step 3: Cross multiply
    137,886.02x = 190,261.98 × 77,445.08
  4. Step 4: Simplify right side
    137,886.02x = 14,734,854,262.06
  5. Step 5: Solve for x
    x = 14,734,854,262.06/137,886.02
  6. Step 6: Final answer
    x = 106,862.57

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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.