Home / 130,946.47-180,700.29-76,503.68

Finding the Fourth Proportional to 130,946.47, 180,700.29 and 76,503.68

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Solution

The fourth proportional to 130,946.47, 180,700.29 and 76,503.68 is: 105,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.47 : 180,700.29 = 76,503.68 : x
  2. Step 2: Convert to fraction form
    130,946.47/180,700.29 = 76,503.68/x
  3. Step 3: Cross multiply
    130,946.47x = 180,700.29 × 76,503.68
  4. Step 4: Simplify right side
    130,946.47x = 13,824,237,162.07
  5. Step 5: Solve for x
    x = 13,824,237,162.07/130,946.47
  6. Step 6: Final answer
    x = 105,571.67

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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.