Home / 127,420.40-191,154.76-42,036.42

Finding the Fourth Proportional to 127,420.40, 191,154.76 and 42,036.42

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Solution

The fourth proportional to 127,420.40, 191,154.76 and 42,036.42 is: 63,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,420.40 : 191,154.76 = 42,036.42 : x
  2. Step 2: Convert to fraction form
    127,420.40/191,154.76 = 42,036.42/x
  3. Step 3: Cross multiply
    127,420.40x = 191,154.76 × 42,036.42
  4. Step 4: Simplify right side
    127,420.40x = 8,035,461,776.36
  5. Step 5: Solve for x
    x = 8,035,461,776.36/127,420.40
  6. Step 6: Final answer
    x = 63,062.60

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1.5x scale

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.