Home / 113,430.51-156,587.25-65,674.63

Finding the Fourth Proportional to 113,430.51, 156,587.25 and 65,674.63

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Solution

The fourth proportional to 113,430.51, 156,587.25 and 65,674.63 is: 90,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,430.51 : 156,587.25 = 65,674.63 : x
  2. Step 2: Convert to fraction form
    113,430.51/156,587.25 = 65,674.63/x
  3. Step 3: Cross multiply
    113,430.51x = 156,587.25 × 65,674.63
  4. Step 4: Simplify right side
    113,430.51x = 10,283,809,378.09
  5. Step 5: Solve for x
    x = 10,283,809,378.09/113,430.51
  6. Step 6: Final answer
    x = 90,661.76

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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.