Home / 130,628.35-180,262.02-74,038.51

Finding the Fourth Proportional to 130,628.35, 180,262.02 and 74,038.51

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Solution

The fourth proportional to 130,628.35, 180,262.02 and 74,038.51 is: 102,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,628.35 : 180,262.02 = 74,038.51 : x
  2. Step 2: Convert to fraction form
    130,628.35/180,262.02 = 74,038.51/x
  3. Step 3: Cross multiply
    130,628.35x = 180,262.02 × 74,038.51
  4. Step 4: Simplify right side
    130,628.35x = 13,346,331,370.39
  5. Step 5: Solve for x
    x = 13,346,331,370.39/130,628.35
  6. Step 6: Final answer
    x = 102,170.25

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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.