Home / 130,533.76-180,136.96-70,917.76

Finding the Fourth Proportional to 130,533.76, 180,136.96 and 70,917.76

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Solution

The fourth proportional to 130,533.76, 180,136.96 and 70,917.76 is: 97,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.76 : 180,136.96 = 70,917.76 : x
  2. Step 2: Convert to fraction form
    130,533.76/180,136.96 = 70,917.76/x
  3. Step 3: Cross multiply
    130,533.76x = 180,136.96 × 70,917.76
  4. Step 4: Simplify right side
    130,533.76x = 12,774,909,696.41
  5. Step 5: Solve for x
    x = 12,774,909,696.41/130,533.76
  6. Step 6: Final answer
    x = 97,866.71

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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.