Home / 126,938.30-190,417.02-42,698.70

Finding the Fourth Proportional to 126,938.30, 190,417.02 and 42,698.70

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Solution

The fourth proportional to 126,938.30, 190,417.02 and 42,698.70 is: 64,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.30 : 190,417.02 = 42,698.70 : x
  2. Step 2: Convert to fraction form
    126,938.30/190,417.02 = 42,698.70/x
  3. Step 3: Cross multiply
    126,938.30x = 190,417.02 × 42,698.70
  4. Step 4: Simplify right side
    126,938.30x = 8,130,559,211.87
  5. Step 5: Solve for x
    x = 8,130,559,211.87/126,938.30
  6. Step 6: Final answer
    x = 64,051.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.