Home / 105,312.40-157,968.60-26,429.20

Finding the Fourth Proportional to 105,312.40, 157,968.60 and 26,429.20

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Solution

The fourth proportional to 105,312.40, 157,968.60 and 26,429.20 is: 39,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,312.40 : 157,968.60 = 26,429.20 : x
  2. Step 2: Convert to fraction form
    105,312.40/157,968.60 = 26,429.20/x
  3. Step 3: Cross multiply
    105,312.40x = 157,968.60 × 26,429.20
  4. Step 4: Simplify right side
    105,312.40x = 4,174,983,723.12
  5. Step 5: Solve for x
    x = 4,174,983,723.12/105,312.40
  6. Step 6: Final answer
    x = 39,643.80

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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.