Home / 130,502.56-180,088.72-70,885.28

Finding the Fourth Proportional to 130,502.56, 180,088.72 and 70,885.28

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Solution

The fourth proportional to 130,502.56, 180,088.72 and 70,885.28 is: 97,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,502.56 : 180,088.72 = 70,885.28 : x
  2. Step 2: Convert to fraction form
    130,502.56/180,088.72 = 70,885.28/x
  3. Step 3: Cross multiply
    130,502.56x = 180,088.72 × 70,885.28
  4. Step 4: Simplify right side
    130,502.56x = 12,765,639,342.04
  5. Step 5: Solve for x
    x = 12,765,639,342.04/130,502.56
  6. Step 6: Final answer
    x = 97,819.07

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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.